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H Bridge motor control circuit using L298

2015-03-03 23:21  
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H Bridge Motor Control

Given below is an H bridge motor?control and ?driver circuit using IC L298

Description :

A bidirectionalH bridgeDC motor control circuit is shown here. The circuit is based on the IC L298 from ST Microelectronics. L298 is a dual full bridge driver that has a wide operating voltage range and can handle load currents up to 3A. The IC also features low saturation voltage and over temperature protection.
In the circuit diode D1 to D4 are protection diodes. Capacitor C2 is the logic power supply filter and capacitor C2 is the supply voltage filter. The state of the motor will depend on the logic level of the pins 10, 11, 12 and it is described in the table shown below the circuit diagram.

Circuit diagram of H bridge motor controller:

H Bridge Motor Control Driver Circuit Schematic using IC L298

H Bridge Motor Control Circuit Schematic

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H bridge motor control

H Bridge Motor Driver-Inputs

Notes :

Do not connect a motor that consumes more than 2.5A of current.The main power supply can be anything between 3 to 40V DC.It is advised to fit LM298 with a proper heat sink.

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